

The Shaft assembly is a precision-engineered shift fork shaft kit designed specifically for the HOWO Max 4X2 transmission, providing reliable and accurate gear selection for third and fourth gears. This complete kit includes the Third/fourth-gear shift fork shaft, the Tab, the Forward gear shift block, and two precision locating pins, delivering all the critical components needed for a robust shift linkage system.
As genuine howo Parts, the Shaft assembly meets the highest OEM standards, offering the durability and precision that professional drivers depend on.
Every element in this Shaft assembly is manufactured to exacting tolerances, ensuring smooth fork movement, positive gear engagement, and extended transmission service life. This Shaft assembly is the ideal solution for rebuilding the mid-range shift mechanism, restoring the crisp, positive engagement that drivers rely on for confident gear changes in urban and highway driving.
The Shaft assembly integrates the Third/fourth-gear shift fork shaft, which is the main actuating rod that transfers shift rail motion to the shift fork for third and fourth gears. The Tab and Forward gear shift block work together to precisely engage the synchronizer sleeves, ensuring smooth and accurate gear selection. The two locating pins secure the fork to the shaft,
eliminating play and maintaining correct alignment. Each part is precision-machined from high-strength steel and heat-treated for exceptional wear resistance. This Shaft assembly is the ideal solution for rebuilding the mid-range shift mechanism, restoring the crisp, positive engagement that drivers expect.
With the Shaft assembly, you can restore the shifting precision of your HOWO Max 4X2, reducing shift effort and preventing gear clash. Trust in HOWO’s engineering and the quality of this Shaft assembly to keep your truck performing at its peak.
The Third/fourth-gear shift fork shaft is the central actuating rod of this Shaft assembly, responsible for translating the driver’s shift motion to the third and fourth gear synchronizer sleeves. This precision-ground shaft is manufactured from high-carbon steel with induction-hardened bearing surfaces, providing exceptional wear resistance and dimensional stability. Its precise diameter and surface finish ensure low-friction movement within the shift rail bushings, reducing shift effort and improving feel.
The Third/fourth-gear shift fork shaft features precisely located grooves and detents that engage with the shift block and fork, ensuring accurate positioning during gear selection. Its hardened ends are designed to interface with the shift mechanism
, providing a durable connection point for the shift cables or rods. Replacing a worn or bent shaft with this genuine component restores the precision of the Shaft assembly, ensuring positive engagement of third and fourth gears.
This Third/fourth-gear shift fork shaft is a critical part of the Shaft assembly, providing the linear motion needed for smooth and accurate gear changes. Its robust construction guarantees long-term reliability, even under the high loads of heavy-duty trucking.
The Tab is a precision-machined metal plate that attaches to the shift fork shaft, providing a positive engagement surface for the shift block. This component is a key part of the Shaft assembly, ensuring that the shift fork is securely connected to the shaft and that the axial movement is accurately transmitted to the synchronizer sleeve. Its precise dimensions and hardness guarantee consistent shifting performance.
Manufactured from high-strength steel with a corrosion-resistant coating, the Tab is designed to withstand the repeated impacts and wear associated with frequent gear changes. Its precisely located mounting holes ensure a perfect fit with the shaft and fork, eliminating play and ensuring positive engagement. Replacing a worn or damaged Tab with this genuine component restores the integrity of the Shaft assembly, preventing shift fork disengagement and ensuring reliable gear selection.
The Tab is an essential part of the Shaft assembly, providing the mechanical link between the shift fork shaft and the shift block, ensuring accurate and consistent gear changes.
The Forward gear shift block is a precision-machined component that interfaces with the shift fork to engage third and fourth gears. This block is designed to provide a positive, repeatable engagement surface for the shift fork tab, ensuring that the synchronizer sleeve is correctly positioned for smooth gear meshing. Its hardened steel construction resists wear and deformation, maintaining consistent shift quality over the long term.
The Forward gear shift block is precisely machined to match the shift fork profile, providing a smooth, low-friction interface that reduces shift effort. Its accurate dimensions ensure that the fork is positioned correctly relative to the synchronizer sleeve, preventing misalignment and gear clash. Replacing a worn or damaged shift block with this genuine component restores the precision of the Shaft assembly, ensuring that third and fourth gears engage smoothly and reliably.
The Forward gear shift block is a critical part of the Shaft assembly, providing the wear surface that interfaces with the shift tab, ensuring consistent and accurate gear selection.
The Pin is a precision-ground cylindrical fastener used to secure the shift fork to the shaft, ensuring a rigid connection that transmits axial and radial forces accurately. In the Shaft assembly, two pins are used to lock the fork in position, preventing any relative movement that could lead to misalignment or premature wear. These pins are manufactured from high-strength alloy steel with a hardened surface, providing excellent shear strength and wear resistance.
The Pin is designed for an interference fit, ensuring that it remains securely in place even under high vibration and load. Its precise diameter and length match the shaft and fork bores, guaranteeing a snug fit that eliminates play. Replacing a worn or damaged pin with this genuine component restores the rigidity of the Shaft assembly, ensuring that the shift fork remains accurately positioned for consistent gear engagement.
The Pin is an essential part of the Shaft assembly, providing the secure fastening needed to maintain the alignment and integrity of the shift fork mechanism.
The second Pin in the Shaft assembly provides redundant securing for the shift fork, ensuring that the connection remains rigid even under the most demanding conditions. This pin is identical to the first pin in material and dimensions, but its placement on the opposite side of the fork ensures balanced clamping force and eliminates any possibility of fork rotation or axial play. Together, the two pins create a fail-safe attachment that guarantees the fork remains correctly aligned with the synchronizer sleeve.
This second Pin is manufactured to the same high standards as the first, providing consistent quality and reliability. Its installation ensures that the Shaft assembly maintains its precision over the long term, preventing shift fork looseness that could lead to gear selection errors and transmission damage. Replacing a missing or damaged second pin with this genuine component restores the full integrity of the Shaft assembly.
The second Pin is a vital part of the Shaft assembly, providing the extra security needed for reliable shift fork retention under heavy use.
Shaft assembly – complete shift fork shaft kit for HOWO Max 4X2 (Third/Fourth gear)
| Material Encoding | Name |
|---|---|
| WG2212220055 | Third/fourth-gear shift fork shaft |
| WG2214220058 | Tab |
| WG2214220013 | Forward gear shift block |
| WG2229220002 | Pin |
| WG2229220001 | Pin |
The Shaft assembly includes the main fork shaft, tab, shift block, and both locating pins, providing everything needed to rebuild the third and fourth gear shift mechanism. This comprehensive kit eliminates the need to source individual components, ensuring compatibility and saving valuable workshop time.
Every component of the Shaft assembly is manufactured to the exact OEM specifications, using high-grade steel and advanced heat treatment. This ensures exceptional wear resistance, dimensional stability, and long-term reliability, even under the high loads of heavy-duty shifting.
All components of the Shaft assembly are precision-ground and machined to tight tolerances, guaranteeing a perfect fit with the shift rail and fork. The hardened pins and precisely located detents ensure smooth, positive gear engagement, reducing shift effort and preventing gear clash.
As genuine howo Parts, the Shaft assembly is designed and tested by the same engineers who built your transmission. You receive the assurance of quality, compatibility, and performance that only OEM components can provide, backed by HOWO’s global service network.
The Shaft assembly is a critical component for maintaining the shifting performance of your HOWO Max 4X2’s transmission. The third and fourth gears are heavily used in city driving and highway cruising, and the shift fork mechanism undergoes significant wear over time. A worn fork shaft, damaged tab, or loose shift block can lead to difficult shifting, gear pop-out, or even transmission damage. Rebuilding with this complete Shaft assembly kit restores the shift precision and reliability of your transmission, ensuring crisp, positive engagement every time.
The Third/fourth-gear shift fork shaft provides the linear actuation needed for gear selection, while the Tab and Forward gear shift block work together to accurately position the synchronizer sleeve. The two Pins secure the fork to the shaft, eliminating play and ensuring consistent shift quality. Together, these components form a robust and reliable Shaft assembly that delivers smooth, accurate gear changes for the life of the vehicle.
Installation of the Shaft assembly requires careful attention to alignment and torque specifications. The shift fork must be correctly positioned on the shaft, and the pins must be properly seated to ensure a rigid connection. This kit is designed to make the rebuild process straightforward, with all components clearly matched to the original equipment and the necessary hardware supplied.
Regular inspection of the Shaft assembly is recommended as part of your vehicle’s preventive maintenance. Check for excessive wear on the shaft and block, and listen for any abnormal noises during gear changes. If you detect any issues, replacing the worn parts with this genuine Shaft assembly kit will restore the reliability of your transmission and prevent more extensive damage to the synchronizers and gears.
For fleet operators, standardizing on the Shaft assembly simplifies parts inventory and ensures consistent shift quality across all vehicles. The robust construction of these genuine components minimizes the frequency of repairs, lowering total cost of ownership and increasing vehicle uptime.
Owner-operators will appreciate the peace of mind that comes from using genuine HOWO parts. Knowing that your Shaft assembly is built to OEM standards allows you to focus on the road, confident that your transmission is protected.
The Shaft assembly is also compatible with the latest diagnostic tools, allowing for easy verification of shift fork position and wear during routine checks. This compatibility simplifies troubleshooting and ensures that your transmission remains in optimal condition.
In summary, the Shaft assembly is the definitive solution for rebuilding the third and fourth gear shift fork mechanism of your HOWO Max 4X2. Its comprehensive design, OEM-quality construction, and ease of installation make it the smart choice for any professional driver or fleet manager.
Choose the Shaft assembly for your next transmission service and experience the difference that genuine howo Parts make. This investment in reliability will pay dividends in transmission longevity, shift quality, and reduced downtime.
Order the Shaft assembly today and ensure that your HOWO Max 4X2 continues to deliver the dependable shifting performance that you expect. With this complete kit, you can restore your shift fork mechanism to factory-new condition and drive with confidence.
Don’t compromise on shift quality – upgrade with the genuine Shaft assembly and keep your HOWO Max 4X2 operating at its best.
The Shaft assembly – engineered for HOWO Max 4X2, delivering precision shift fork components for reliable transmission performance.